1Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur, India, 721302
Cryogenic air separation plant is expected to produce nitrogen, oxygen and argon in gaseous and/or liquid forms. Performance of such plants depend on number of components which may malfunction. When an operating plant has a reduced rate of production, increased power consumption and off-the-mark purity of products, the questions that haunt the operators are: which component is malfunctioning? Which parameters ought to be tuned? As the manufacturer almost never shares the geometric details of plant manufacturing, it becomes a challenge for the simulating person to guess the design details. However, once operating parameters match with simulated plant, it may be termed as recreation of the design. In the present work estimated design parameters were used for simulating plant in Aspen HYSYS® (a commercial chemical process simulator) platform until the results matched with output parameters. Results could serve as guidance to the operating engineers to preempt the decrease of plant performance.
Cryogenic air separation, Fault diagnosis, Aspen HYSYS®, Geometrical parameters, Simulation
